Okay so after the epic Phase 3 announcements of the #MarvelEvent there was a short Q&A. I've copied everything as it was posted in the transcript on Marvel.com
Questions are bold and Marvel Studios President Kevin Feige's responses are below that.
Marvel Studios President Kevin Feige is talking about wanting to have fun with this announcement and wanted the fans to be on the front line
Question was about how long they had been planning this event
Feige wanted to announce this at San Diego Comic-Con 2014, but things hadn't come together until recently
Question about Doctor Strange casting
Feige - "If it was confirmed, we would have announced it today." It will be announced "some time before the release of the movie"
Will solo Black Panther and Captain Marvel movies be their introduction?
"We will see Black Panther in Civil War in costume"
Will we see Cosmo in Guardians of the Galaxy 2?
"When Mr. Gunn returns from Tokyo, those are questions we'll go through."
Question about Captain Marvel casting
Writer and Director announcements will come first